Machine for mixing dry and liquid materials



July 9, 1929. G. v. RQBERTS, JR 1,720,573

` MACHINE FOR MIXING DRY AND LIQUID MATERIALS Filed March 2, 1929 Patented July 9, 1929.

. GEORGE v. :sonneries Ja., on' roar BYRON, New venir.

MACHINE FOR MIXING DRY IIQUID MATERIALS.

Appiicauqn inea Marche, 192s. sei-iai No. 344,031.

This invention relatesto a machine adapt ed to mix dry and liquid materials and `more particularly to a machine 'of the type 'disclosed in the patent to Lionel True,

#1,691,535,15lov. 13,1928, employed for mixing. molasses and a 'dry pulverulent material as for example stock feeds, in order Vto ini crease the food value thereof and render the'- same more palatable.

Hitherto machines for this purpose have applied the molasses on the upper surface of the feed as it is slowly agitated by some member within themixing chamber. As is well known/this type of machine is exceed- 15 ingly inefficient due to the manner in which the molasses is supplied in that little piles of molasses will form on the slowly moving sur ,face of the feed causing lumps containing an unduly high percentage of molasses in the feed after it is mixed.`

This invention contemplates to obviate this disadvantage by providing a plurality of dis-l charge pipes extending transversely of the vertical hollowr shaft and in communication with the interior thereof, said pipes being po- ,sitioned a slight distance belowl the under surface of the helicoid .conveyor secured tov said shaft andterininating short of theouter edge thereof, the molasses being supplied to the lower end of said shaft through a suit-- able means. This position of the discharge pipes will result in an exceedinglyuniform mixture due to the fact that as the feed moves ,y possibility for puddles along there will be no the mixing chamber in two parts whereby the same may be easily disassembled to clean vthe interiorI thereof.

Otherl objects of this invention will bel come apparent as the detailed description thereof given below will indicate, reference being now had to the accompanying drawing wherein Figure 1 is an elevation partly in section of the mixing chamber andthemeans whereby the molasses is supplied to Figure 2 is a detail view of Figure 1 and v Figure 3 is a detail view ef'Figure 1.. y l

the hollow shaft. taken on line 2-2,

vthe arms 9 which are riveted or is stuffed with a suitable mixing chamber 1 comprising an upper cylindrical member '2 having a flange 3 formed on its lower end is adapted to be connected by means of thebolts4 to the upper 55 flange 5 of the conical member Gwhich also Y terminates in a 'lower flange 7.

The mixing Vchamber 1 may be open at the top but it is preferably closed so that the contents of the chamber will` bey more sanitary, I and has fastened thereto and centrally thereof a, bearing support 8 formed intermediate otherwise securedto tliecylinder 2; Ay hollow shaft 10 has rigidly secured thereto ,and interiorly thereo. in any desired manner, va lstulzlshaft 11 which 1s adapted to fit within the upper caring support 8. The lower end of the hollow shaft 10 terminates in a: flange 12 'and has rigidly secured'thereto and interiorly thereof in anydesired manner a hollow studshaft 13. A bearing support 14, comprising a boss 15 having a bronze bush- 'ing lffitted therein is rigidly attached to the .asf clearly shown in Figure, 1.

`)integrally formed A with the bearing support 14 1s a depending' substantially right anguiar bracket 17 havin a similar shaped cored passage 18 forme therein. rThe up- 85 L er portion of the free arm of the braket 17 ormed therein a recess 19 and a hole 20 v"cfa reduced diameter, thru which the end lof the hollow stud shaft 13 is adapted to pass. `A plug`17 is provided in the under surface of the bracket 17 in alignment with the hollow shaft 10 whereby the same may be removed to clean the interior of said bracket and said hollow shaft. A flanged member 21 isadapted to fit within the recess 19 which packing 22, the pressure applied on said packing 22 by the inember 21 being adjusted through the medium of the bolts 23, said elements forming a fluid tight stung box.

A chamber 24: having a lower conical portion 25 has formed thereon upper and lower flange 7 and being rigidly secured lthereto by the bolts 28. -A closure Yplate 29 is pivyoted to the fiange 26'- as at 30 and is adapted' to swing. clear of theopening 31`in the conta-iner 24 to allow the mixed feed to How out into bags or'other means to hold the same. A similar closure plate 32 is provided between the container 24 and the conical por` tion 6 of the mixing chamber 1 to prevent any of the mixture to enter the container 24 until it is thoroughly mixed, said closure plate being either swingable or adapted to slide in or out in the manner as is well known in the art.

A pipe 33 is screwed into engagement with the bracket 17, said pipe conveying the molasses under pressure from a pump not shown. The container 2i has a U-opening 34 therein to accommodate the pipe 33, see Figure 2.

Rigidlysecured tothe hollow main shaft 10 is a spiral or helicoid conveyor 35. Y Slightly vbelow each convolution-of the conveyor 35 is a discharge pipe 36 connected'with the interior of the main shaft 10 as clearly Y'shown in Figures 1 and 3, said discharge pipe being of such a length as to terminate short of the outer edge of said conveyor-aselearly shown in Figure 1. The discharge pipes. 36 are disposed in thisposition so that they are protected by the conveyor proper above it.

The molasses is pumped through the pipe 33 into the cored passage 18 and upwardly through the interior of the main shaft 10 and discharging in a' continuousstream through the discharge pipes 36. VThe feed is supplied to the mixing chamber 1 through the top. As

` the conveyor 35 rotates with'the shaft 10 the feed will pass-by` the discharge openings of the discharge pipes in a uniform manner and 'will uniformlybe mixed with the molasses to make a homogeneous mixture. It will be next to impossible-for puddles of molasses to form in the feed, in that it is immediately removed from the 'opening ofthe discharge pipe 36 on account of the rapid rotary movement of lthe end of said pipespast the particles of feed.

- It is to be distinctly understood that I do not desire to limit this invention to the typel of mixing machine described above, in that thesame may advantageously be employed in a Hammermill grinder which is specially designed to grind corn feed and the like. and thereby mix the molasses with the same while grinding. This invention may also be advantageously employed in horizontal mixing machines.

It is further to be understood that even though the liquid has been described as being supplied to the lower end of the shaft through a suitable means, it likewise is to be understood that the liquid may be also supplied `to the upper end of the shaft, or in either end of the shaft as may be. desired.

Having thus described and illustrated the invention, what is claimed as new and which it is desired to secure by Letters Patent is 1. In combination with a mixing chamber, a hollow shaft rotatably mounted therein, a helicoid conveyor secured to said shaft, means for positively supplying a liquid to the interior of said shaft, and a plurality of discharge pipes arranged perpendicular to the longitudinal axis of said ,shaft and positioned a Islight distance below the under surface of `plurality ,of discharge pipes arranged perpendicular to the longitudinal axis of said' hollow shaft and positioned a slight distance below the under surfaceA of said conveyor,

a stuffing box constituting an integral portion of said last mentioned bearing member and adjacent thereto', and adapted to encompass the extending end of said shaft, a cored passage adjacent to said stuffing box and in communication with the end of said shaft, and means for supplying a liquid to said cored passage.

3. In combination with a mixing chamber, bearing members secured to the opposite ends thereof,- a hollow shaft open at one end rotatably supported in said bearing members and having said open end extending through its supporting bearing, a substantially right angle bracket forming an integral part of said last mentioned bearing, a stuliing box on the free leg of said bracket adapted to encompass the extending end of the shaft., a coredpassage in said bracket in communication with said hollow shaft, and means connected to said cored passage to supply a liquid under pressure to the interior of said shaft.

4. In combination with a mixing chamber, a hollow shaft open at one end rotatably mounted therein, a helicoid conveyor secured to said shaft, means .for positively supplying a liquid under pressure to thev interior of said. shaft, a plurality of discharge pipes arranged perpendicular to the longitudinal axis of said shaft and in communication with 'the interior thereof, said discharge pipes ter- .veyor secured tosaid shaft, means to supply a dry material to said mixer, means for-posiltively supplying a liquid under pressure to the interior of said shaft at its lower end, and a plurality of discharge pipes arranged transverse to said hollow shaft and positioned beneath the under surface of said conveyor, and terminating short of the outer edge thereof. 1

6. In combination with a mixing chamber, a hollow vertical shaft, a helicoid conveyor secured thereto and rotatable therewith means to supply a liquid under pressure td the bottom of said shaft, means to supply a dry material to the interior of said container, 10 means to admitA the liquid to mix with said dry material, and means whereby said container may readily be disassembled to clean the interior thereof.

GEORGE-V. ROBERTS, Je 

